A soft mode in a finite Fermi-system: anharmonic effects near the instability point

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We consider a finite Fermi-system where the residual interactions create a soft mode of the excitation spectrum. Because of the large vibrational amplitude, the standard random phase approximation does not work in this situation. We develop a regular method for constructing the anharmonic potential and illustrate the application of the formalism by a simple model.
11 pages, 2 figures

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/81761

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/0112013
 http://arxiv.org/abs/nucl-th/0112013

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arXiv